Acyclovir is an antiviral drug. It slows the growth and spread of the herpes virus in the body. Acyclovir will not cure herpes, but it can lessen the symptoms of the infection. Acyclovir is used to treat infections caused by herpes viruses, such as genital herpes, cold sores, shingles, and chicken pox. Aciclovir (Zovirax) Aciclovir is an antiviral medicine used to treat certain infections. Most types are only available with a prescription, but you can buy some types from shops and pharmacies. Learn about Zovirax uses, dosage, side effects, food interactions, and more. Get all the details about Zovirax from MedicinesFAQ. Zovirax (Acyclovir) may treat, side effects, dosage, drug interactions, warnings, patient labeling, reviews, and related medications including drug comparison and health resources. Find patient medical information for Acyclovir (Zovirax) on WebMD including its uses, side effects and safety, interactions, pictures, warnings, and user ratings ZOVIRAX is the brand name for acyclovir, a synthetic nucleoside analogue active against herpesviruses. Acyclovir sodium for injection is a sterile lyophilized powder for intravenous. Intravenous aciclovir is effective in treating severe medical conditions caused by different species of the herpes virus family, including severe localized infections of the herpes virus, severe genital herpes, chickenpox and herpesviral encephalitis. Zovirax is used to treat infections caused by herpes viruses, such as genital herpes, cold sores, shingles, and chickenpox. Zovirax will not cure herpes, but it can lessen the symptoms of the infection. Medscape - Herpes simplex, zoster-specific dosing for Zovirax (acyclovir), frequency-based adverse effects, comprehensive interactions, contraindications, pregnancy & lactation schedules, and. Acyclovir (Zovirax) is an antiviral topical medication used to treat certain infections caused by the herpes virus, including cold sores on the lips and face, as well as genital herpes.